System and method for protecting data stored on a removable data storage device

• US 8,601,597 B2
• Filed: 12/29/2011
• Issued: 12/03/2013
• Est. Priority Date: 12/29/2011
• Status: Expired due to Fees

• Current Assignee: Elwha LLC (Intellectual Ventures LLC)
• Original Assignee: Elwha LLC (Intellectual Ventures LLC)
• Inventors: Chan, Alistair K., Hyde, Roderick A., Kare, Jordin T., Wood, Lowell L. Jr., Wood, Victoria Y. H.
• Primary Examiner(s): Dinh, Minh
• Application Number:
  US13/340,454
• Publication Number:
  US 20130174265A1
• Time in Patent Office: 705 Days
• Field of Search: None
• US Class Current: 726/26
• CPC Class Codes: G06F 12/14 Protection against unauthorised use of memory or access to memory
• CPC Class Codes: G06F 12/1408 by using cryptography for digital transmission H04L9/00
• CPC Class Codes: G06F 21/6209 to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself
• CPC Class Codes: G06F 21/88 Detecting or preventing theft or loss

Abstract

A system for protecting data stored in a memory of a removable data storage device is provided. The system includes a personal electronic device, a removable solid state data storage device operatively coupled to the personal electronic device, and a circuit configured to alter data stored in the memory of the data storage device in response to detecting that the data storage device has been removed from the personal electronic device.

Claims

1. A system for protecting data stored in a memory of a removable data storage device, comprising:

a personal electronic device;

a solid state removable data storage device operatively coupled to the personal electronic device, the removable data storage device comprising a Subscriber Identity Module (SIM); and

a circuit configured to alter data stored in a memory of the removable data storage device in response to detecting that the removable data storage device has been removed from the personal electronic device.

2. The system of claim 1, wherein the circuit is disposed on the personal electronic device.

3. The system of claim 1, wherein the circuit comprises a removal detection module, the removal detection module configured to detect that the removable data storage device has been removed from the personal electronic device.

4. The system of claim 3, wherein the removal detection module is configured to detect a change in mutual capacitance between the personal electronic device and the removable data storage device.

5. The system of claim 3, wherein the removal detection module is configured to detect exposure to light.

6. The system of claim 5, wherein the personal electronic device comprises a photoelectric cell disposed beneath the removable data storage device such that the photoelectric cell is substantially shielded from available light when the removable data storage device is in an installed position.

7. The system of claim 1, wherein the circuit comprises a data protection module configured to alter at least some of the data stored in the memory of the removable data storage device.

8. The system of claim 7, wherein the data protection module is configured to alter a subset of the data stored in the memory of the removable data storage device.

9. The system of claim 7, wherein the data protection module is configured to delete at least some of the data stored in the memory of the removable data storage device.

10. The system of claim 7, wherein the data protection module is configured to overwrite at least some of the data stored in the memory of the removable data storage device.

11. The system of claim 7, wherein the data protection module is configured to encrypt at least some of the data stored in the memory of the removable data storage device.

12. The system of claim 7, wherein the removable data storage device comprises an energy module configured to provide power to the data protection module.

13. The system of claim 7, wherein the personal electronic device comprises an energy module configured to provide power to the data protection module.

14. The system of claim 13, wherein the energy module is configured to inductively couple energy to the data protection module.

15. A removable data storage device comprising:

a memory; and

a circuit configured to respond to detecting that a removable data storage device has been removed from a personal electronic device by altering data stored in the memory of the removable data storage device;

wherein the removable data storage device comprises a Subscriber Identity Module (SIM).

16. The removable data storage device of claim 15, wherein the circuit comprises a removal detection module, the removal detection module being configured to detect that the removable data storage device has been removed from the personal electronic device.

17. The removable data storage device of claim 16, wherein the removal detection module is configured to detect breaking of an electrical contact.

18. The removable data storage device of claim 16, wherein the removal detection module is configured to detect exposure to light.

19. The removable data storage device of claim 16, wherein the removal detection module is configured to detect a change in orientation of the removable data storage device relative to the personal electronic device.

20. The removable data storage device of claim 15, wherein the circuit comprises a data protection module configured to alter at least some of the data stored in the memory of the removable data storage device.

21. The removable data storage device of claim 20, wherein the data protection module responds to detecting that the removable data storage device has been removed from the personal electronic device.

22. The removable data storage device of claim 20, wherein the data protection module responds to a signal from a removal detection module on the personal electronic device.

23. The removable data storage device of claim 20, wherein the data protection module is configured to delete at least some of the data stored in the memory of the removable data storage device.

24. The removable data storage device of claim 20, wherein the data protection module is configured to encrypt at least some of the data stored in the memory of the removable data storage device.

25. The removable data storage device of claim 20, wherein the data protection module is configured to hide at least some of the data stored in the memory of the removable data storage device.

26. The removable data storage device of claim 20, wherein the data protection module is configured to prevent access to at least some of the data stored in the memory of the removable data storage device.

27. The removable data storage device of claim 20, further comprising an energy module configured to power the data protection module.

28. The removable data storage device of claim 27, wherein the energy module comprises a photoelectric cell.

29. The removable data storage device of claim 27, wherein the energy module is configured to receive energy from the personal electronic device.

30. A method for protecting data stored in a memory of a removable data storage device, comprising:

detecting, by a circuit, that a removable data storage device has been removed from a personal electronic device, the removable data storage device comprising a Subscriber Identity Module (SIM); and

causing, by the circuit, at least some of the data stored in a memory of the removable data storage device to be altered in response to detecting that the removable data storage device has been removed from the personal electronic device.

31. The method of claim 30, wherein the detecting step comprises detecting exposure to light.

32. The method of claim 31, further comprising receiving a signal from a light dependent resistor disposed on the removable data storage device.

33. The method of claim 30, wherein the detecting step comprises detecting a change in orientation of the removable data storage device relative to the personal electronic device.

34. The method of claim 30, further comprising receiving a signal indicating removal of the removable data storage device from a removal detection module on the personal electronic device.

35. The method of claim 30, further comprising altering a subset of the data stored in the memory of the removable data storage device.

36. The method of claim 35, wherein the subset of the data comprises data stored in a designated memory location.

37. The method of claim 35, wherein the subset of the data comprises information required for operation of the personal electronic device.

38. The method of claim 30, further comprising encrypting at least some of the data stored in the memory of the removable data storage device.

39. The method of claim 38, further comprising increasing a level of encryption of at least some of the encrypted data stored in the memory of the removable data storage device.

40. The method of claim 30, further comprising receiving power from an energy module.

41. The method of claim 40, wherein the energy module is configured to generate electricity in response to an electromagnetic stimulus.

42. The method of claim 40, further comprising storing energy in the energy module after the removable data storage device is placed into an installed position.

43. The method of claim 30, further comprising providing power to a data protection module configured to alter at least some of the data stored in the memory of the removable data storage device in response to detecting that the removable data storage device has been removed from the personal electronic device.

44. The method of claim 43, further comprising generating power in response to an electromagnetic stimulus.

45. The method of claim 43, further comprising inductively coupling power from the personal electronic device to the removable data storage device.